function openChoice(id)
{
	document.getElementById("ctopics_id").value=id;
	openDiv("choice_contant");
	openDiv("mask");
	closeDiv("choice_c_button_1");
	openDiv("choice_c_ts_1");
	closeDiv("choice_result");
}
function closeChoice()
{
	var tid = document.getElementById("t_id");
	deleteRow("t_id","result_info","topicsList");
	closeDiv("choice_contant");
	closeDiv("mask");
}
function openButton(){
	closeDiv("choice_c_ts_1");
	openDiv("choice_c_button_1");
}
//进入图片的时间
function onChoiceImg()
{
	var img = document.getElementById("choiceImg");
	img.src="../img/choice.jpg";
}
//离开图片是事件
function offChoiceImg()
{
	var img = document.getElementById("choiceImg");
	img.src="../img/nochoice.jpg";
}
//选择课题
function choicetopics()
{
	closeDiv("choice_c_ts_1");
	closeDiv("choice_c_button_1");
	openDiv("choice_result");
	dojo.event.topic.publish("choice");
}
//打开学生信息的div
function showStudent(id)
{
	document.studentNum.studentID.value=id;
	openDiv("student_contant");
	openDiv("mask");
	dojo.event.topic.publish("student_detail");
}